CN110198076A - Automatic power-supply switch - Google Patents
Automatic power-supply switch Download PDFInfo
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- CN110198076A CN110198076A CN201910445073.4A CN201910445073A CN110198076A CN 110198076 A CN110198076 A CN 110198076A CN 201910445073 A CN201910445073 A CN 201910445073A CN 110198076 A CN110198076 A CN 110198076A
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- China
- Prior art keywords
- power source
- relay
- main power
- control circuit
- switching control
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The application is suitable for technical field of automatic control, provides a kind of automatic power-supply switch, comprising: main power source switching control circuit, for controlling the investment and excision of main power source；Backup power source switching control circuit, for controlling the investment and excision of backup power source；When the voltage of main power source is lower than preset first voltage threshold value, by main power source switching control circuit and backup power source switching control circuit, while main power source and backup power source are put into；When the sum of voltage of the voltage of main power source and backup power source is higher than preset second voltage threshold value, main power source is put by main power source switching control circuit, and backup power source is cut off by backup power source switching control circuit.Automatic power-supply switch provided by the embodiments of the present application, pass through main power source switching control circuit and backup power source switching control circuit, the investment and excision for automatically controlling main power source and backup power source, solve the problems, such as that reliability existing for current manual switching charge power supply is poor.
Description
Technical field
The application belongs to technical field of automatic control more particularly to a kind of automatic power-supply switch.
Background technique
Currently, in substation DC charging system power supply, it is universal to use 3 to 5 pieces of 300W intelligent charging modules, root substantially
According to the variation of battery voltage and electric current, fixed, floating charging mode is manually changed.However, charging module long-play, internal member
Part overheat, impaired, aging, are easy to cause charger DC Module failure, cause to cover protection exception in station, to the safety of power grid more
Reliability service, which constitutes, to be seriously threatened.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of automatic power-supply switch, filled with solving current manual switching
The poor problem of reliability existing for power supply.
The embodiment of the present application provides a kind of automatic power-supply switch, comprising: main power source switching control circuit, for controlling
The investment and excision of main power source processed；Backup power source switching control circuit, for controlling the investment and excision of backup power source；When described
When the voltage of main power source is lower than preset first voltage threshold value, pass through the main power source switching control circuit and the backup power source
Switching control circuit, while putting into the main power source and the backup power source；Voltage and the standby electricity when the main power source
When the sum of the voltage in source is higher than preset second voltage threshold value, the main electricity is put by the main power source switching control circuit
Source, and the backup power source is cut off by the backup power source switching control circuit.
Automatic power-supply switch provided by the embodiments of the present application is thrown by main power source switching control circuit and backup power source
Control circuit is cut, the investment and excision of main power source and backup power source is automatically controlled, manual hand manipulation is avoided, so that main power source
It is more reliable with the investment of backup power source and excision, solve that reliability existing for current manual switching charge power supply is poor to ask
Topic.
According to automatic power-supply switch provided by the embodiments of the present application, in some embodiments, the main electricity
Source switching control circuit includes: normally opened key switch SB2 and relay KM1；The normally opened key switch SB2 and relay KM1
Coil M1 series connection after be connected between firewire and zero curve；The normally opened contact M1-K2 of the relay KM1 and the main power source
Output end connection.
Automatic power-supply switch provided by the embodiments of the present application, by being closed normally opened key switch SB2, to make relay
The coil M1 of device KM1 is powered on, and then the normally opened contact M1-K2 closure of relay KM1, realizes the investment of main power source.
According to automatic power-supply switch provided by the embodiments of the present application, in some embodiments, in the master
In power supply switching control circuit, the normally opened contact M1-K1 of the relay KM1 is connected in parallel on the two of the normally opened key switch SB2
End.
Automatic power-supply switch provided by the embodiments of the present application, by the way that the normally opened contact M1-K1 of relay KM1 is in parallel
At the both ends of normally opened key switch SB2, so that relay KM1 be made to enter self-lock protection state, relay KM1 is avoided surprisingly to break
It opens, the lasting investment of main power source 300 is realized, to improve the reliability that automatic power-supply switch controls main power source.
According to automatic power-supply switch provided by the embodiments of the present application, in some embodiments, the main electricity
Source switching control circuit further include: closed button switch SB1；The closed button switch SB1 be connected to firewire with it is described normally opened
Between key switch SB2.
Automatic power-supply switch provided by the embodiments of the present application, by being set between firewire and normally opened key switch SB2
Set closed button switch SB1, when user by closed button switch SB1, main power source can be cut off manually when needed.
It is in some embodiments, described spare according to automatic power-supply switch provided by the embodiments of the present application
Power supply switching control circuit includes: relay KM2, voltage relay X1 and voltage relay X2；The voltage relay X1, electricity
It is connected between firewire and zero curve after the coil M2 series connection of potential relay X2 and relay KM2；The voltage relay X1 is used for
It is closed when the voltage of the main power source is lower than preset first voltage threshold value；The voltage relay X2 is used in the main electricity
The sum of voltage of the voltage in source and the backup power source disconnects when being higher than preset second voltage threshold value；The relay KM2's
Normally opened contact M2-K2 is connect with the output end of the backup power source.
Automatic power-supply switch provided by the embodiments of the present application, when the voltage of main power source is lower than preset first voltage threshold
When value X1, by being closed normally opened voltage relay X1, to make the coil M2 of relay KM2 power on, and then relay KM2's is normal
Contact M2-K2 closure is opened, realizes the investment of backup power source.It is preset when the sum of the voltage of main power source and the voltage of backup power source are higher than
Second voltage threshold X 2 when, by disconnecting normally closed voltage relay X2, to make the coil M2 power down of relay KM2, in turn
The normally opened contact M2-K2 of relay KM2 is disconnected, realizes the excision of backup power source.
It is in some embodiments, described spare according to automatic power-supply switch provided by the embodiments of the present application
Power supply switching control circuit further include: normally opened key switch SB4；The normally opened key switch SB4 is connected in parallel on the voltage relay
The both ends of device X1.
Automatic power-supply switch provided by the embodiments of the present application, by normally opened pressing the both ends of voltage relay X1 are in parallel
Key switch SB4 allows user when needed, by being closed normally opened key switch SB4, puts into backup power source manually.
According to automatic power-supply switch provided by the embodiments of the present application, in some embodiments, described standby
With in power supply switching control circuit, the normally opened contact M2-K1 of the relay KM2 is connected in parallel on the normally opened key switch SB4's
Both ends.
Automatic power-supply switch provided by the embodiments of the present application, by the both ends parallel connection in normally opened key switch SB4 after
The normally opened contact M2-K1 of electric appliance KM2, and it is being closed normally opened key switch SB4 or voltage relay X1 and the line for making relay KM2
After circle M2 is powered on, it is closed the normally opened contact M2-K1 of relay KM2, so that relay KM1 be made to enter self-lock protection state, is kept away
Exempt from relay KM2 surprisingly to disconnect, realize the lasting investment of backup power source, to improve automatic power-supply switch to standby electricity
The reliability of source control.
According to automatic power-supply switch provided by the embodiments of the present application, in some embodiments, in the master
In power supply switching control circuit, the normally opened contact M2-K3 of the relay KM2 is connected in parallel on the two of the normally opened key switch SB2
End.
Automatic power-supply switch provided by the embodiments of the present application, by the both ends parallel connection in normally opened key switch SB2 after
The normally opened contact M2-K3 of electric appliance KM2, further realizes to relay KM1 from lock control, so that it is automatic to further increase power supply
The reliability that switching device controls main power source.
According to automatic power-supply switch provided by the embodiments of the present application, in some embodiments, the power supply
Automatic switching control equipment further includes circulation relay KM3；The circulation relay KM3 is used to count the cutting time of the main power source
Number, and when the breaks reach preset frequency threshold value, cut off the main power source.
Automatic power-supply switch provided by the embodiments of the present application, by the way that the breaks for counting main power source are arranged
Relay KM3 is recycled, and when breaks reach preset frequency threshold value, cuts off main power source, play defencive function.
According to automatic power-supply switch provided by the embodiments of the present application, in some embodiments, the circulation
The first end of relay KM3 coil M3 is connect with firewire, and the second end of the coil M3 is connect with zero curve；In the main power source
In switching control circuit, after the normally-closed contact M2-K4 of the relay KM2 connects with the normally opened contact M1-K1, it is connected to institute
It states between the third end of coil M3 and the 4th end of the coil M3；The normally-closed contact M3-K1 of the circulation relay KM3 and institute
After the normally opened contact M1-K2 series connection for stating relay KM1, it is connect with the output end of the main power source.
Since the third end and the 4th end of relay KM3 coil M3 will be recycled, access normal in concatenated relay KM2
Normally opened contact M1-K1 in closed contact M2-K4 and relay KM1, to make each act of normally opened contact M1-K1 can be by
Relay KM3 statistics is recycled, the missing inspection to main power source breaks is avoided.In addition, passing through the normally closed touching that will recycle relay KM3
It after point M3-K1 connects with the normally opened contact M1-K2 of relay KM1, then connect with the output end of main power source 300, can pass through
When the breaks for the main power source 300 that circulation relay KM3 is counted reach preset frequency threshold value, normally closed touching is disconnected automatically
Point M3-K1 realizes the protection to main power source 300 to cut off main power source 300.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the application
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the system structure signal of a specific example of automatic power-supply switch provided by the embodiments of the present application
Figure；
Fig. 2 is the circuit diagram of another specific example of automatic power-supply switch provided by the embodiments of the present application.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, so as to provide a thorough understanding of the present application embodiment.However, it will be clear to one skilled in the art that there is no these specific
The application also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, so as not to obscure the description of the present application with unnecessary details.
In order to illustrate technical solution described herein, the following is a description of specific embodiments.
The embodiment of the present application provides a kind of automatic power-supply switch, as shown in Figure 1, the automatic power-supply switch can
To include: main power source switching control circuit 100 and backup power source switching control circuit 200.
Wherein, main power source switching control circuit 100 is used to control the investment and excision of main power source 300.
Backup power source switching control circuit 200 is used to control the investment and excision of backup power source 400.
When the voltage of the main power source 300 is lower than preset first voltage threshold value, controlled by the main power source switching
Circuit 100 and the backup power source switching control circuit 200, while putting into the main power source 300 and the backup power source 400.
When the sum of the voltage of the main power source 300 and the voltage of the backup power source 400 are higher than preset second voltage threshold
When value, the main power source 300 is put by the main power source switching control circuit 100, and pass through the backup power source switching control
Circuit 200 processed cuts off the backup power source 400.
In a specific embodiment, as shown in Fig. 2, main power source switching control circuit 100 may include: that normally opened key is opened
Close SB2 and relay KM1.
Specifically, be connected to after the coil M1 series connection of the normally opened key switch SB2 and relay KM1 firewire and zero curve it
Between；The normally opened contact M1-K2 of the relay KM1 is connect with the output end of the main power source.
When needing to put into main power source 300, it is closed normally opened key switch SB2, to make on the coil M1 of relay KM1
Electricity, and then the normally opened contact M1-K2 closure of relay KM1, realize the investment of main power source 300.
It optionally, as shown in Fig. 2, can also be in the main power source switching control circuit, by the normal of the relay KM1
Open the both ends that contact M1-K1 is connected in parallel on the normally opened key switch SB2.
After being closed normally opened key switch SB2 and powering on the coil M1 of relay KM1, the normally opened contact of relay KM1
M1-K1 closure, so that relay KM1 be made to enter self-lock protection state, avoids relay KM1 from surprisingly disconnecting, and realizes main power source 300
Lasting investment, to improve the reliability that automatic power-supply switch controls main power source.
Optionally, closed button switch SB1 can also be added in the main power source switching control circuit 100.Specifically,
The closed button switch SB1 is connected between firewire and the normally opened key switch SB2.User can pass through when needed
Closed button switch SB1 cuts off main power source 300 manually.
In another specific embodiment, as shown in Fig. 2, the backup power source switching control circuit 100 may include: after
Electric appliance KM2, voltage relay X1 and voltage relay X2.
Specifically, being connected to fire after the coil M2 of the voltage relay X1, voltage relay X2 and relay KM2 series connection
Between line and zero curve.
The voltage relay X1 is used to be closed when the voltage of the main power source is lower than preset first voltage threshold value；Institute
Voltage relay X2 is stated for being higher than preset second electricity in the sum of the voltage of the main power source and the voltage of the backup power source
It is disconnected when pressing threshold value.
The normally opened contact M2-K2 of the relay KM2 is connect with the output end of the backup power source.
When the voltage of main power source 300 is lower than preset first voltage threshold X 1, normally opened voltage relay X1 closure, thus
The coil M2 of relay KM2 is powered on, and then the normally opened contact M2-K2 closure of relay KM2, realizes the throwing of backup power source 400
Enter.
When the sum of voltage of the voltage of main power source 300 and backup power source 400 is higher than preset second voltage threshold X 2, often
Voltage relay X2 disconnection is closed, to make the coil M2 power down of relay KM2, and then the normally opened contact M2-K2 of relay KM2 is disconnected
It opens, realizes the excision of backup power source 400.
Optionally, it is opened as shown in Fig. 2, normally opened key can also be added in the backup power source switching control circuit 200
Close SB4.
Specifically, the normally opened key switch SB4 is connected in parallel on the both ends of the voltage relay X1.User can need
When, by normally opened key switch SB4, backup power source 400 is put into manually.
Optionally, it is opened as shown in Fig. 2, closed button can also be added in the backup power source switching control circuit 200
Close SB3.
Specifically, the closed button switch SB3 is connected between firewire and normally opened key switch SB4.User can be
When needing, by disconnecting closed button switch SB4, backup power source 400 is cut off manually.
It optionally, as shown in Fig. 2, can also be in the backup power source switching control circuit 200, by the relay
The normally opened contact M2-K1 of KM2 is connected in parallel on the both ends of the normally opened key switch SB4.
After being closed normally opened key switch SB4 or voltage relay X1 and powering on the coil M2 of relay KM2, relay
The normally opened contact M2-K1 of KM2 is closed, so that relay KM1 be made to enter self-lock protection state, relay KM2 is avoided surprisingly to disconnect,
The lasting investment for realizing backup power source 400, to improve the reliability that automatic power-supply switch controls backup power source.
It optionally, as shown in Fig. 2, can also be in the main power source switching control circuit, by the normal of the relay KM2
It opens the both ends that contact M2-K3 is connected in parallel on the normally opened key switch SB2, further realizes to relay KM1 from lock control, from
And further increase the reliability that automatic power-supply switch controls main power source.
Optionally, as shown in Fig. 2, circulation relay KM3 can also be added in the automatic power-supply switch.
Specifically, the circulation relay KM3 is used to count the breaks of the main power source, and in the breaks
When reaching preset frequency threshold value, the main power source 300 is cut off, defencive function is played.
In practical applications, the first end of the circulation relay KM3 coil M3 is connect with firewire, the coil M3's
Second end is connect with zero curve.
In the main power source switching control circuit, the normally-closed contact M2-K4 and the normally opened contact of the relay KM2
After M1-K1 series connection, it is connected between the third end of the coil M3 and the 4th end of the coil M3.
After the normally-closed contact M3-K1 of the circulation relay KM3 connects with the normally opened contact M1-K2 of the relay KM1,
It is connect with the output end of the main power source.
Since the third end and the 4th end of relay KM3 coil M3 will be recycled, access normal in concatenated relay KM2
Normally opened contact M1-K1 in closed contact M2-K4 and relay KM1, to make each act of normally opened contact M1-K1 can be by
Relay KM3 statistics is recycled, the missing inspection to main power source breaks is avoided.In addition, passing through the normally closed touching that will recycle relay KM3
It after point M3-K1 connects with the normally opened contact M1-K2 of relay KM1, then connect with the output end of main power source 300, can pass through
When the breaks for the main power source 300 that circulation relay KM3 is counted reach preset frequency threshold value, normally closed touching is disconnected automatically
Point M3-K1 realizes the protection to main power source 300 to cut off main power source 300.
Automatic power-supply switch provided by the embodiments of the present application is thrown by main power source switching control circuit and backup power source
Control circuit is cut, the investment and excision of main power source and backup power source is automatically controlled, manual hand manipulation is avoided, so that main power source
It is more reliable with the investment of backup power source and excision, solve that reliability existing for current manual switching charge power supply is poor to ask
Topic.
Embodiment described above is only to illustrate the technical solution of the application, rather than its limitations；Although referring to aforementioned reality
Example is applied the application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution should all
Comprising within the scope of protection of this application.
Claims (10)
1. a kind of automatic power-supply switch characterized by comprising
Main power source switching control circuit, for controlling the investment and excision of main power source；
Backup power source switching control circuit, for controlling the investment and excision of backup power source；
When the voltage of the main power source is lower than preset first voltage threshold value, pass through the main power source switching control circuit and institute
Backup power source switching control circuit is stated, while putting into the main power source and the backup power source；
When the sum of voltage of the voltage of the main power source and the backup power source is higher than preset second voltage threshold value, pass through institute
It states main power source switching control circuit and puts into the main power source, and is described spare by backup power source switching control circuit excision
Power supply.
2. automatic power-supply switch as described in claim 1, which is characterized in that the main power source switching control circuit packet
It includes: normally opened key switch SB2 and relay KM1；
It is connected between firewire and zero curve after the coil M1 series connection of the normally opened key switch SB2 and relay KM1；
The normally opened contact M1-K2 of the relay KM1 is connect with the output end of the main power source.
3. automatic power-supply switch as claimed in claim 2, which is characterized in that in the main power source switching control circuit
In, the normally opened contact M1-K1 of the relay KM1 is connected in parallel on the both ends of the normally opened key switch SB2.
4. automatic power-supply switch as claimed in claim 3, which is characterized in that the main power source switching control circuit is also wrapped
It includes: closed button switch SB1；
The closed button switch SB1 is connected between firewire and the normally opened key switch SB2.
5. automatic power-supply switch as claimed in claim 4, which is characterized in that the backup power source switching control circuit packet
It includes: relay KM2, voltage relay X1 and voltage relay X2；
Be connected to after the coil M2 of the voltage relay X1, voltage relay X2 and relay KM2 series connection firewire and zero curve it
Between；The voltage relay X1 is used to be closed when the voltage of the main power source is lower than preset first voltage threshold value；The electricity
Potential relay X2 is used to be higher than preset second voltage threshold in the sum of the voltage of the main power source and the voltage of the backup power source
It is disconnected when value；
The normally opened contact M2-K2 of the relay KM2 is connect with the output end of the backup power source.
6. automatic power-supply switch as claimed in claim 5, which is characterized in that the backup power source switching control circuit is also
It include: normally opened key switch SB4；
The normally opened key switch SB4 is connected in parallel on the both ends of the voltage relay X1.
7. automatic power-supply switch as claimed in claim 6, which is characterized in that in the backup power source switching control circuit
In, the normally opened contact M2-K1 of the relay KM2 is connected in parallel on the both ends of the normally opened key switch SB4.
8. automatic power-supply switch as claimed in claim 7, which is characterized in that in the main power source switching control circuit
In, the normally opened contact M2-K3 of the relay KM2 is connected in parallel on the both ends of the normally opened key switch SB2.
9. automatic power-supply switch as claimed in claim 8, which is characterized in that the automatic power-supply switch further includes
Recycle relay KM3；
The circulation relay KM3 is used to count the breaks of the main power source, and reaches preset in the breaks
When frequency threshold value, the main power source is cut off.
10. automatic power-supply switch as claimed in claim 9, which is characterized in that the circulation relay KM3 coil M3
First end connect with firewire, the second end of the coil M3 is connect with zero curve；
In the main power source switching control circuit, the normally-closed contact M2-K4 of the relay KM2 and the normally opened contact M1-
After K1 series connection, it is connected between the third end of the coil M3 and the 4th end of the coil M3；
After the normally-closed contact M3-K1 of the circulation relay KM3 connects with the normally opened contact M1-K2 of the relay KM1, with institute
State the output end connection of main power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910445073.4A CN110198076A (en) | 2019-05-27 | 2019-05-27 | Automatic power-supply switch |
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|---|---|---|---|
| CN201910445073.4A CN110198076A (en) | 2019-05-27 | 2019-05-27 | Automatic power-supply switch |
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| CN110198076A true CN110198076A (en) | 2019-09-03 |
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| CN201910445073.4A Pending CN110198076A (en) | 2019-05-27 | 2019-05-27 | Automatic power-supply switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4106141A3 (en) * | 2021-06-16 | 2023-03-22 | Asco Power Technologies, L.P. | Proactive engine start (pes) |
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| CN205319792U (en) * | 2015-12-22 | 2016-06-15 | 易勇 | Double power source switch circuit and double power source switch system |
| CN206452177U (en) * | 2016-11-25 | 2017-08-29 | 深圳光启空间技术有限公司 | A kind of power switch control device and Power transfer system |
| CN107994679A (en) * | 2017-12-25 | 2018-05-04 | 常熟开关制造有限公司(原常熟开关厂） | Double power supply automatic transfer switch switching control method and double power supply automatic transfer switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4106141A3 (en) * | 2021-06-16 | 2023-03-22 | Asco Power Technologies, L.P. | Proactive engine start (pes) |
| US11621581B2 (en) | 2021-06-16 | 2023-04-04 | Asco Power Technologies, L.P. | Proactive engine start (PES) |
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